Howlite and Anorthoclase Physical Properties

Howlite

Anorthoclase

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.45-2.582.56-2.62

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

None

From the Greek for oblique and fracture, descriptive of the cleavage

1.7 Mohs Hardness

3-3.56-6.5

2 10

1.8 Chemical Composition

Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Howlite and Anorthoclase Chemical Formula

While comparing Howlite and Anorthoclase physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Howlite and Anorthoclase chemical formula.

Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Howlite and Anorthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Anorthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Anorthoclase Optical Properties during the identification of gemstone. Specific gravity of Howlite is 2.56-2.62 whereas that of Anorthoclase is 2.56-2.62.